PostgreSQL is considered by many to be the most advanced open source database in the world (sorry mySQL), providing a wealth of features (sub-select, transactions, write-ahead logging etc) that are usually only found in commercial databases. PostgreSQL is an object-relational database management system (ORDBMS), originally developed in 1977 by the University of Berkeley and it is included by default as the main database on most *BSD systems, like FreeBSD. But in spite of its long history and extensive user base (however, it is still not as popular as the Linux-centric mySQL though), PostgreSQL suffered from a lack of comprehensive and easy-to-use documentation. "Practical PostgreSQL" (along with 2 more PostgreSQL books, all released the last 2-3 months) fills that information void with a fast-paced guide to installation, configuration, and usage.

You knew what Eugenia was talking about, didn't you? Then, quit being so quick to point out spelling errors! I'd like to see all of the people who point out stuff like that to try and do what she does - write technical articles in a language other than their native one, and see how well they do... I'm pretty sure that the majority won't be anywhere as proficient (I'm including myself - I can barely get by in English, let alone anything else!)